Abstract
NOT many examples of redox catalysis in non-aqueous solutions are known. The oxidation of ascorbic acid by copper in absolute ethyl alcohol is interesting because in many respects it resembles the corresponding oxidation in aqueous systems. In the experiments to be described, the absolute alcohol solution of ascorbic acid contained 1 mgm. of the acid per 2 ml. After the oxidation, the unchanged ascorbic acid was estimated by dichlorphenolindophenol titration of a 2 ml. sample diluted by addition of 10 ml. of 0.5 per cent aqueous acetic acid.
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Lang, W., Berichte, 21, 1578 (1888).
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OWSKI, E. Oxidation by Copper in Alcoholic Medium. Nature 150, 234 (1942). https://doi.org/10.1038/150234a0
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DOI: https://doi.org/10.1038/150234a0
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